Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

WESLEY JOHN CHANG

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1174593453
CMS profile
234824
Location
ANAHEIM, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

General Payments · PY2024

$771.57

22 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Methodology & Data — sourcing, labeling, and limitations.

Data mirrored . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $771.57 22

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Acerta Pharma LLC $509.54 11
Exact Sciences Corporation $77.05 3
PFIZER INC. $54.38 3
Lilly USA, LLC $33.42 1
Amgen Inc. $30.54 1
Novo Nordisk AS $24.86 1
BOSTON SCIENTIFIC CORPORATION $24.42 1
MEDLINE INDUSTRIES LP $17.36 1

Payment records · PY2024 (22)

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
PFIZER INC. $14.14 11/21/2024 Food and Beverage No dispute reported 06/30/2026 1131201080 CMS
PFIZER INC. $17.26 11/20/2024 Food and Beverage No dispute reported 06/30/2026 1131172971 CMS
AstraZeneca Pharmaceuticals LP $119.76 11/13/2024 Food and Beverage No dispute reported 06/30/2026 1104623876 CMS
Medline Industries LP $17.36 11/13/2024 Food and Beverage No dispute reported 06/30/2026 1144140893 CMS
AstraZeneca Pharmaceuticals LP $17.81 11/08/2024 Food and Beverage No dispute reported 06/30/2026 1104386391 CMS
AstraZeneca Pharmaceuticals LP $15.66 10/15/2024 Food and Beverage No dispute reported 06/30/2026 1105793918 CMS
Amgen Inc. $30.54 10/09/2024 Food and Beverage No dispute reported 06/30/2026 1115491564 CMS
Exact Sciences Corporation $25.45 10/04/2024 Food and Beverage No dispute reported 06/30/2026 1114612401 CMS
AstraZeneca Pharmaceuticals LP $14.20 09/16/2024 Food and Beverage No dispute reported 06/30/2026 1104282375 CMS
Boston Scientific Corporation $24.42 09/11/2024 Food and Beverage No dispute reported 06/30/2026 1092720834 CMS
AstraZeneca Pharmaceuticals LP $120.39 08/29/2024 Food and Beverage No dispute reported 06/30/2026 1104747893 CMS
Novo Nordisk Inc $24.86 08/21/2024 Food and Beverage No dispute reported 06/30/2026 1097790008 CMS
Exact Sciences Corporation $19.59 07/17/2024 Food and Beverage No dispute reported 06/30/2026 1114612398 CMS
AstraZeneca Pharmaceuticals LP $14.49 07/16/2024 Food and Beverage No dispute reported 06/30/2026 1104384511 CMS
AstraZeneca Pharmaceuticals LP $13.94 06/11/2024 Food and Beverage No dispute reported 06/30/2026 1104622124 CMS
Exact Sciences Corporation $32.01 05/10/2024 Food and Beverage No dispute reported 06/30/2026 1114612394 CMS
AstraZeneca Pharmaceuticals LP $15.50 05/08/2024 Food and Beverage No dispute reported 06/30/2026 1105804131 CMS
AstraZeneca Pharmaceuticals LP $14.04 04/02/2024 Food and Beverage No dispute reported 06/30/2026 1104569110 CMS
AstraZeneca Pharmaceuticals LP $120.47 03/14/2024 Food and Beverage No dispute reported 06/30/2026 1104283225 CMS
PFIZER INC. $22.98 03/14/2024 Food and Beverage No dispute reported 06/30/2026 1131148964 CMS
Lilly USA, LLC $33.42 03/06/2024 Food and Beverage No dispute reported 06/30/2026 1135503386 CMS
AstraZeneca Pharmaceuticals LP $43.28 01/12/2024 Food and Beverage No dispute reported 06/30/2026 1104671323 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $679.20 34
PY2020 $742.45 37
PY2021 $1,725.51 100
PY2022 $675.79 33
PY2023 $732.99 24
PY2024 $771.57 22

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024
Source files and profile matching
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
WESLEY JOHN CHANG, NPI 1174593453. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1174593453.
APA 7
IndustryPayments. (2026). WESLEY JOHN CHANG, NPI 1174593453 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1174593453
Bluebook
WESLEY JOHN CHANG, NPI 1174593453, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1174593453.

Source: Centers for Medicare & Medicaid Services, Open Payments.